I-MAB-SPONSORED ADR (IMAB) Institutional Ownership Changes & 13F Activity

I-MAB-SPONSORED ADR (IMAB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Janus Henderson Group Plc, Hhlr Advisors, Ltd., Morgan Stanley, Siren, L.L.C., and Point72 Asset Management, L.P..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Janus Henderson Group PlcBuy+8,436,641—8,436,641$33.58MQ4 2025Feb 17, 2026
Hhlr Advisors, Ltd.Buy+5,980,568—5,980,568$23.80MQ4 2025Feb 17, 2026
Point72 Asset Management, L.P.Buy+2,298,501—2,298,501$9.15MQ4 2025Feb 17, 2026
Woodline Partners LpBuy+1,050,000—1,050,000$4.18MQ4 2025Feb 17, 2026
Adage Capital Partners Gp, L.L.C.Buy+1,000,000—1,000,000$3.98MQ4 2025Feb 17, 2026
Millennium Management LlcBuy+846,008—846,008$3.37MQ4 2025Feb 17, 2026
Xtx Topco LtdBuy+140,867—140,867$560.65KQ4 2025Feb 17, 2026
Taikang Asset Management (Hong Kong) Co LtdBuy+128,765—128,765$512.49KQ4 2025Feb 17, 2026
Susquehanna International Group, LlpBuy+47,479—47,479$188.97KQ4 2025Feb 17, 2026
Nomura Holdings IncBuy+35,200—35,200$140.10KQ4 2025Feb 17, 2026
Quadrature Capital LtdBuy+29,588—29,588$117.76KQ4 2025Feb 17, 2026
Mangrove Partners Im, LlcBuy+26,026—26,026$103.58KQ4 2025Feb 17, 2026
Bank Of America CorpBuy+8,219—8,219$32.71KQ4 2025Feb 17, 2026
Royal Bank Of CanadaBuy+6,360—6,360$25.00KQ4 2025Feb 17, 2026
Public Employees Retirement System Of OhioBuy+2,947—2,947$11.73KQ4 2025Feb 17, 2026
Tower Research Capital Llc (Trc)Buy+1,765—1,765$7.03KQ4 2025Feb 17, 2026
Jones Financial Companies LllpBuy+1,104—1,104$4.39KQ4 2025Feb 17, 2026
Osaic Holdings, Inc.Buy+30—30$119.00Q4 2025Feb 17, 2026
Morgan StanleyBuy+3,785,502—3,785,502$15.07MQ4 2025Feb 13, 2026
Siren, L.L.C.Buy+3,000,000—3,000,000$11.94MQ4 2025Feb 13, 2026
Candriam S.C.A.Buy+1,132,563—1,132,563$4.51MQ4 2025Feb 13, 2026
Barclays PlcBuy+628,923—628,923$2.50MQ4 2025Feb 13, 2026
Exome Asset Management LlcBuy+499,587—499,587$1.99MQ4 2025Feb 13, 2026
State Street CorpBuy+359,878—359,878$1.43MQ4 2025Feb 13, 2026
Dymon Asia Capital (Singapore) Pte. Ltd.Buy+80,400—80,400$319.99KQ4 2025Feb 13, 2026
Squarepoint Ops LlcBuy+34,322—34,322$136.60KQ4 2025Feb 13, 2026
Citigroup IncBuy+6,039—6,039$24.04KQ4 2025Feb 13, 2026
Caitong International Asset Management Co., LtdBuy+528—528$2.10KQ4 2025Feb 13, 2026
Rhumbline AdvisersBuy+33—33$131.00Q4 2025Feb 13, 2026
Blackrock, Inc.Buy+618,347—618,347$2.46MQ4 2025Feb 12, 2026
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Frequently asked questions about IMAB activity

  • Which institutional owners are buying IMAB?

    Institutional owners buying IMAB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in IMAB activity?

    "Buy" means an investor increased their reported position in IMAB compared to the prior reporting period. This reflects growing exposure to I-MAB-SPONSORED ADR (IMAB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IMAB increasing?

    Institutional interest in IMAB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.